ENS 46636
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ENS Event | |
|---|---|
17:20 Feb 22, 2011 | |
| Title | Offsite Notification Due to Noncompliant Partial Lake Bypass Operation |
| Event Description | At 1120 [CST] on February 22, 2011, Dresden Station transitioned to indirect open cycle (Partial Lake Bypass). This was done to control level in the Hot Discharge Canal, which was rising due to a failure of the 2/3 'E' Lift Pump on neutral over current earlier in the day. This is a noncompliance of the NPDES [National Pollution Discharge Elimination System] permit, which does not allow operation in lake bypass except when both units are shutdown. This noncompliance is reportable to the Illinois Environmental Protection Agency. The site representative for the Illinois Emergency Management Agency was also notified.
The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Dresden  Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-1.17 h-0.0488 days <br />-0.00696 weeks <br />-0.0016 months <br />) | |
| Opened: | Frank Winter 16:10 Feb 22, 2011 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Feb 22, 2011 |
| 46636 - NRC Website | |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 3 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 557212022-02-01T16:25:0001 February 2022 16:25:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Siren Actuations ENS 553962021-08-03T20:39:0003 August 2021 20:39:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Inadvertent Siren Actuation ENS 543582019-10-29T14:19:00029 October 2019 14:19:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Actuation of Sirens ENS 531982018-02-07T16:40:0007 February 2018 16:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Emergency Notification Sirens Inadvertently Actuated ENS 519132016-05-08T04:50:0008 May 2016 04:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Reporting That Site Was Notified of Siren Sounding ENS 515092015-10-30T19:29:00030 October 2015 19:29:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Lost of Lift Station Power ENS 501802014-06-08T21:15:0008 June 2014 21:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Tritium Discovered in Onsite Well ENS 484262012-10-20T16:00:00020 October 2012 16:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Potential Inadvertent Release of Tritium ENS 483612012-10-01T00:30:0001 October 2012 00:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Fire in the Maintenance Building ENS 470922011-07-24T18:05:00024 July 2011 18:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Extended Emergency Siren Activation During Testing ENS 469432011-06-09T19:22:0009 June 2011 19:22:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Siren Activation Due to Lightning Strike ENS 466362011-02-22T17:20:00022 February 2011 17:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Noncompliant Partial Lake Bypass Operation ENS 451162009-06-06T20:22:0006 June 2009 20:22:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Made Due to Elevated Levels of Tritium ENS 445272008-09-29T15:09:00029 September 2008 15:09:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Discharge of Oil Into Navigable Waters ENS 408812004-07-19T23:04:00019 July 2004 23:04:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Recovery of Drowning Victim on Owner Controlled Property 2022-02-01T16:25:00 | |
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